van wagenen



(No Model.) 2 Sheets-Sheet 1.

G. VAN WAGENEN & J. GRAVES. MACHINE FOR MANUFACTURING WEOUGHT METALPLANGES FOR PIPE GOUPLINGS. Nofilg iill. aten ed Oct. 8, 1889.

irrolmn (No Model.) 2 Sheets-Sheet 2.

G. VAN WAGENEN & J. GRAVES. MAGHINE FOR MANUFACTURING WROUGHT METALFLANGE-S FOR PIPE COUPLINGS.

Patented Oct. 8, 1889.

m m%%@ w ATTORNEY N rams mmulm w WAMMOJ} UNITED STATES PATENT OFFICE.

GEORGE VAN W AGENEN AND JOHN GRAVES, OF NEW YORK, N. Y.

MACHINE FOR MANUFACTURING WROUGHT-METAL FLANGES FOR PIPE-COUPLINGS.

SPECIFICATION forming part of Letters Patent No. 412,31 1, dated October8, 1889.

Application filed July 27, 1839.

To all whom it may concern:

Be it known that we, GEORGE VAN \VAGENEN and JOHN GRAVES, citizens ofthe United States, and residents of New York, in the county of New Yorkand State of New York, have invented certain new and useful Improvementsin Machines for Manufacturing \Vrought-Metal Flanges for Pipe-Couplingsand other Purposes, of which the following is a specification.

The invention relates to improvements in machines for manufacturingsheet metal flanges for pipe-couplings and otherpurposes; and itconsists in certain mechanism, hereinafter described, embracing male andfemale dies, by which the circular centrallyapertured blanks ofsheet-metal first have their central portions turned downward to formthe hubs of the flanges, and then said hubs are thickened or upsetpreparatory to being internally threaded.

By means of the invention we are enabled to rapidly and successfullymanufacture wrought-metal flanges which possess the requisite strengthand durability for all the purposes to which coupling-flanges areusually applied.

Referring to the accompanying drawings, Figure 1 is a front elevation,partly in section, of a machine embodying the elements of the inventionand designed to accomplish the first step in the formation of theflange. Fig. 2 is a like view of same, illustrating the dies formed tocomplete the second step in the process of forming the flange. Fig. 3 isa bottom plan view of the male die; Fig. 4, a like view of the ejectorfor stripping the flange from the male die; Fig. 5, a plan view andcentral section of the sheet-metal blank from which the flanges aremade; Fig. 6, a plan view and central section of the blank after havingbeen subjected to the first step in the formation of the flange; Fig. 7,a plan view and section of the finished flange; Fig. 8, a bottom view ofa modified form of ejector for stripping the flanges from the male die,and Fig. 9 a side elevation of a furthcr modified form of ejector.

In the drawings, A designates the base of the machine, and B 11 the sidestandards, car

rying guides on which the drop-carrier D Serial No. 318,816. (No model-lis arranged to have a sliding movement. The carrier 1) is connected bylevers E with an eccentric-shaft of ordinary construction, (not shown,)by which the carrier maybe elevated and allowed to drop during the useof the machine.

The present invention is not limited to any special mechanism forimparting movement to the drop-carrier D, since various forms ofmechanical devices for accomplishing this purpose are well known andform no part of the present invention.

Upon the lower edge of the carrier D is secured by screws F the main dieG, which is circular in outline and provided at its center with theinverted conical spreader H. In the upper surface of the die G is formedthe recess 1, in which is arranged the ejector J, the latter consistingof a circular disk provided with downwardly-extending pins K, and beingsupported upon the lower end of the vertical spindle L, which extendsupward through the center of the drop-carrier D, and is retained inposition by means of the clastic cushion M, the disk N, and nut O, thecushion being between the disk N and the upper edge of the carrier D,and the whole being secured in position by the nut O, which engages athread upon the upper end of the spindle L. Directly above the disk N isprovided the stationary frame 1, having downwardly-extending projectionsQ, which are in position to come into contact with the disk N when thedrop-carrier D is elevated, the purpose of this portion of the structurebeing explained hereinafter. The pins K, connected with the ejector J,when in their normal po sition extend downward through apertures in thedie G to a point on a level with the lower horizontal surface of saiddie, from which surface the conical spreader II extends downward, asillustrated in Fig. 1.

Below the male die G there is secured upon the base A the female die R,whose upper surface is on the same plane as the lower surface of themale die G, and receives the blank which is to be formed into theflange. The f emale die it is provided with a central opening S, havingsubstantially vertical walls, against which the central portions of theshcetnnetal blank may be spread to form the IOCI hub of the flange. Inthe drawings the sheet-metal blank is lettered a and the hub portion ofthe flange b.

In the use of the machine illustrated in Fig. 1, the dropcarrier beingin an elevated position, the sheet-metal blank o is placed centrallyupon the female die R, and the carrier D then allowed to drop, theeffect being that the spreader II will enter the central opening (Z inthe blank 0 and cause the adjacent portions of the blank to be turneddownward against the inner walls of the die S, thereby forming the hub bof the flange, as illustrated in Figs. 1 and 6. The natural spring inthe sheet metal will cause the hub portion of the flange to adhere tothe spreader H, and hence the next step in the operation of the machinewill be to strip the flange from the male die, and this may beaccomplished by means of the ejector J. The dropcarrier 1), being newcaused to ascend the disk N prior to the carrier D, completing itsupward movement, comes into contact with the projections Q Q, andarrests the movement of the spindle L and pins K, the cushion M allowingthe carrier to complete its movement, the effect being to carry thelower surface of the die G upward on the pins K, the disk J and lowersurface of the recess I then coming together and the pins K forcing theflange downward on the spreader H, which, being conical or tapered,permits the same to escape. The cushion M may be either of rubber or acoiled spring, either answering the same purpose, the only object of thesame being to permit by its compression the carrier to have a slightupward movement after the ejector has been stopped by the projections Q,Q. The machine illustrated in Fig. 1 thus forms the central portion ofthe blank a into the hub b for the flange, and in the subsequent stepsin the manufacture it is desirable that the hub bbe thickened or upsetand then internally threaded.

The machine for thickening or upsetting the hub portion of the flange isillustrated in Fig. 2, and is similar in all respects to the machineillustrated in Fig. 1, with the cxception that the male die is providedon its under surface with an annular groove to receive the upturned hubof the flange, and hence like letters of reference indicate like partsin said figures.

The male die in Fig. 2 is, for convenience, lettered T, and it issecured to the lower edge of the drop-carrier D by screws, as shown. Inthe under surface of the die T is formed the annular groove V, (shownmore clearly in Fig. 3,) to receive the hub b of the flange.

After the blank has left the machine illustrated in Fig. 1 it is placedupon the female die V of Fig. 9, with its hub portion b turned upward,and then the drop-carrier l) is allowed to descend, when the spreader llwill pass through the opening in the flange and guide the upper edges ofthe hub 1) into the annular groove V, which is of the proper depth toupset said hub, the hub being compressed between the upper surface ofsaid groove V and the female die \V.

The operation of stripping the flange from the spreader H of Fig. :3 isthe same as that of stripping said flange from the spreader ll of Fig.1, this step being accomplished by arresting the movement of the ejector.T prior to the completion of the upward movement of the drop-carrierl), and causing thereby the pins K to force the flange from the sides ofthe spreader.

Afterthc flange has left the machine illustrated in Fig. 2 itissubjected to an ordinary threadingmachine and threaded, as illustratedin Fig. 7.

The ejector J, in lieu of being provided with pins K, may be furnishedwith the segmental projections c, (illustrated in Fig. 8,) which,extending through slots in the male die, would accomplish the samepurpose exactly as the pins K; or, in lieu of both the pins and thesegments, the ejector may have a riugf, connected with the disk by pins1', as illustrated in Fig. 9, for the purpose of stripping the flangesfrom the spreader H.

In the use of the ejector illustrated in Fig. 9 the ring f would beseated in an annular groove formed in the under surface of the male die,and the pins '5 would move in apertures in said die, such as thoseillustrated in Figs. 1, 2, and

It will be observed that by means of the invention flanges from sheetmetal may be rapidly and successfully manufactured withoutwaste ofmetal.

'W hat we claim as our invention, and desire to secure by LettersPatent, is-

1. For the manufaetu re of flanges from sheet metal, the male and femaledies hereinbefore described, the male dies having the spreader, one pairof said dies being adapted to form the hub portion of the flanges andthe other pair to upset said hub preparatory to the same being threaded,substantially as and for the purposes set forth.

For the m an ufaeture of flanges from sheet metal, the male and female ds adapted to form the hub on the centrally-a p rtured blank, the maledie having the spreader, combined with the ejector for stripping theflange from the spreader after the hub has been formed, substantially asset forth.

3. For the manufacture of flanges from sheet metal, the male and femaledies for forming the hub of the flange and the male and female dies forupsetting said hub, combined with ejectors for stripping the flangesfrom said male dies, substantially as set forth.

4. The male and female dies for forming the hub, the former having thespreader and the latter the central opening, combined with the male andfemale dies for upsetting the hub, the former having the annular grooveand spreader and the latter the central openiug, substantially as andfor the purposes set f orth.

5. The male and female dies for forming the hub of the flange andupsetting said hub, the male dies being secured to a drop-earlierarranged between guides, combined with ejeetol's for stripping theflanges from the male dies, said ejector-s being connected with thedrop-carrier and having a more limited movement than the same,substantially and for the purposes set forth.

(5. The male die having-the spreadernnd secured to the drop-mrrier andthe female die having the central openi ng combined with the ejectorseeured to the spindle passing upward York and State of New York, thisEtth day of 20 July, A, D. 1889.

GEO. AN WAGENEN.

' J UHN GRAY \Yitnesses:

GEORGE (100K, R. A. PORTEOUS.

